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Journal of Rare Earths 2019年第11期37卷 1152-1156页

作者： marcin Runowski Inocencio R.Martin Vladimir N.Sigaev Vitaliy I.Savinkov Georgiy Yu.Shakhgildyan Stefan Lis Faculty of Chemistry Adam Mickiewicz UniversityUniwersytetu Poznanskiego 861-614 PoznanPoland Departamento de Fisica Instituto de Materiales y Nanotecnologia(IMN)Universidad de La LagunaApdo.456E-38200 San Cristobal de La LagunaSanta Cruz de TenerifeSpain D.Mendeleev University of Chemical Technology Miusskaya Sq.9125047 MoscowRussia

Multifunctional core/shell type,luminescent-plasmonic material composed of lanthanide doped microspheres(≈50μm)and gold nanoparticles(Au NPs;≈10-20 nm)deposited onto their surface,were successfully prepared(Nd^3+:YAS@Au).The material was synthesized to combine the luminescence properties of the Nd^3+-doped microspheres,*** resonance with plasmonic activity of the surface Au NPs,*** enhanced Raman scattering(SERS)effect,within a single,micro-sized *** luminescent-plasmonic microspheres were used as the active SERS substrate for detection of the organic probe,and for generation of Whispering Gallery Modes(WGM),which red-shift together with increasing laser power(temperature elevation).The products obtained were analysed with optical,scanning and transmission electron microscopy(SEM and TEM),as well as by Raman,absorption and photoluminescence spectroscopies.

关键词： Luminescence Gold NPs-SPR Surface enhanced Raman scattering Microsphere resonators-WGM Lanthanide ions Optical sensors

Automated patellar height assessment on high-resolution radiographs with a novel deep learning-based approach

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World Journal of Orthopedics 2023年第6期14卷 387-398页

作者： Kamil Kwolek Dariusz Grzelecki Konrad Kwolek Dariusz Marczak Jacek Kowalczewski marcin Tyrakowski Department of Spine Disorders and Orthopaedics Centre of Postgraduate Medical EducationGruca Orthopaedic and Trauma Teaching HospitalOtwock 05-400Poland Department of Orthopaedics and Rheumoorthopedics Centre of Postgraduate Medical EducationGruca Orthopaedic and Trauma Teaching HospitalOtwock 05-400Poland Department of Orthopaedics and Traumatology University HospitalKrakow 30-663Poland

BACKGROUND Artificial intelligence and deep learning have shown promising results in medical imaging and interpreting ***,medical community shows a gaining interest in automating routine diagnostics issues and orthopedic *** To verify the accuracy of automated patellar height assessment using deep learning-based bone segmentation and detection approach on high resolution *** 218 Lateral knee radiographs were included in the analysis.82 radiographs were utilized for training and 10 other radiographs for validation of a U-Net neural network to achieve required Dice score.92 other radiographs were used for automatic(U-Net)and manual measurements of the patellar height,quantified by Caton-Deschamps(CD)and Blackburne-Peel(BP)*** detection of required bones regions on high-resolution images was done using a You Only Look Once(YOLO)neural *** agreement between manual and automatic measurements was calculated using the interclass correlation coefficient(ICC)and the standard error for single measurement(SEM).To check U-Net's generalization the segmentation accuracy on the test set was also *** Proximal tibia and patella was segmented with accuracy 95.9%(Dice score)by U-Net neural network on lateral knee subimages automatically detected by the YOLO network(mean Average Precision mAP greater than 0.96).The mean values of CD and BP indexes calculated by orthopedic surgeons(R#1 and R#2)was 0.93(±0.19)and 0.89(±0.19)for CD and 0.80(±0.17)and 0.78(±0.17)for *** measurements performed by our algorithm for CD and BP indexes were 0.92(±0.21)and 0.75(±0.19),*** agreement between the orthopedic surgeons’measurements and results of the algorithm has been achieved(ICC>0.75,SEM<0.014).CONCLUSION Automatic patellar height assessment can be achieved on high-resolution radiographs with the required *** patellar end-points and the joint line-fitting to the proximal tibia j

关键词： Medical imaging Artificial intelligence in orthopedics Patellar index Deep learning Bone segmentation Region of interest detection

High performance corrosion and wear resistant composite titanium nitride layers produced on the AZ91D magnesium alloy by a hybrid method

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Journal of Magnesium and Alloys 2014年第3期2卷 265-273页

作者： Michał Tacikowski Marek Betiuk Konrad Cymerman marcin Pisarek Irena Pokorska Tadeusz Wierzchon Warsaw University of Technology Faculty of Materials Science and Engineeringul.Wołoska 14102-507 WarsawPoland Institute of Precision Mechanics ul.Duchnicka 301-796 WarsawPoland Institute of Physical Chemistry of the Polish Academy of Science ul.Kasprzaka44/5201-224 WarsawPoland

Composite,diffusive titanium nitride layers formed on a titanium and aluminum sub-layer were produced on the AZ91D magnesium *** layers were obtained using a hybrid method which combined the PVD processes with the final sealing by a hydrothermal *** microstructure,resistance to corrosion,mechanical damage,and frictional wear of the layers were *** properties of the AZ91D alloy covered with these layers were compared with those of the untreated alloy and of some engineering materials such as 316L stainless steel,100Cr6 bearing steel,and the AZ91D alloy subjected to commercial *** has been found that the composite diffusive nitride layer produced on the AZ91D alloy and then sealed by the hydrothermal treatment ensures the corrosion resistance comparable with that of 316L stainless *** layers are characterized by higher electrochemical durability which is due to the surface being overbuilt with the titanium oxides formed,as shown by the XPS examinations,from titanium nitride during the hydrothermal *** composite titanium nitride layers exhibit high resistance to mechanical damage and wear,including frictional wear which is comparable with that of 100Cr6 bearing *** performance properties of the AZ91D magnesium alloy covered with the composite titanium nitride coating are substantially superior to those of the alloy subjected to commercial anodizing which is the dominant technique employed in industrial practice.

关键词： Magnesium alloys Titanium nitride Layers Hybrid method Microstructure Properties

Community structure of Lumbricidae in beech woodland of the Bieszczady National Park, Southeast Poland

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Pedosphere 2021年第3期31卷 391-397页

作者： Anna MAZUR-PĄCZKA Grzegorz PĄCZKA Joanna KOSTECKA Kevin R.BUTT marcin JAROMIN Mariola GARCZYŃSKA Agnieszka PODOLAK University of Rzeszów Faculty of Biology and AgricultureDepartment of Natural Theories of Agriculture and Environmental Education1a Cwiklinskiej St.Rzeszów 35-959Poland University of Central Lancashire Forensic and Applied SciencesPreston PR12HEUK Rzeszów University of Technology Faculty of ChemistryDepartment of Biotechnology and Bioinformatics6 Powstancow Warszawy AvenueRzeszów 35-959Poland

As ecosystem engineers,earthworms play a key role in the soil ***,due to increasing anthropogenic pressure,soil organisms,including earthworms,are being threatened by habitat *** this study,we undertook a qualitative and quantitative investigation of earthworms of the family Lumbricidae in four types of Carpathian beech woodland(Fagetum carpaticum),characterized by their understory vegetation(I,*** drymejae;Ⅱ,***;Ⅲ,***;and IV,***),in the Bieszczady National Park(Eastern Carpathians,Southeast Poland).At each investigated site,soil monoliths(25 cm×25 cm×25 cm)were examined by hand *** were expelled from deep soil layers using a weak formalin solution(0.4%).Depending on the phytocoenosis,7 species of Lumbricidae were identified at each of the sites I,Ⅱ,andⅢand 10 at site *** IV(***)differed significantly(P<0.05)from the other three sites with respect to earthworm biomass(59.71±39.53 g m^(-2))and the Shannon-Wiener diversity index(0.52±0.12).Although present three decades ago,the deep-burrowing species Octodrilus transpadanus and the litter-dwelling species Dendrobaena octaedra were not found at site IV in the present *** suspect that these two species may have been displaced by the invasive Lumbricus terrestris,which was not found at the same site in the *** observations warrant further investigation to verify the predicted effects of an invasive earthworm,including the potential effects on soils and other fauna and flora,which have been documented in numerous countries.

关键词： beech forest earthworm invasive species Shannon-Wiener diversity index species diversity species dominance

Influence of Nonionic Surfactant Addition on Drag Reduction of Water Based Nanofluid in a Small Diameter Pipe

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Chinese Journal of Chemical Engineering 2013年第1期21卷 104-108页

作者： Micha Drzazga Andrzej Gierczycki Grzegorz Dzido marcin Lemanowicz Silesian University of Technology Faculty of Chemistry Department of Chemical and Process Engineering

The goal of this research was to determine the impact of nonionic surfactants on drag reduction effect in water and metal oxide nanofluid. Two nonionic surfactants （Rokacet 07 and Rokanol KT） and copper（II） oxide wa- ter-based nanofluid were examined. Friction factors in a 4 mm diameter pipe for the Reynolds number between 8000 and 50000 were determined. Results showed that addition of nonionic surfactants caused the decrease of fric- tion factor in water and nanofluid. The drag reduction effect was similar in both cases. Presence of nanoparticles in the system has no great influence on drag reduction effect.

关键词： nanofluid nonionic surfactant drag reduction

Breaking wheat yield barriers requires integrated efforts in developing countries

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Journal of Integrative Agriculture 2015年第8期14卷 1447-1474页

作者： Saeed Rauf Maria Zaharieva Marilyn L Warburton ZHANG Ping-zhi Abdullah M AL-Sadi Farghama Khalil marcin Kozak Sultan A Tariq Department of Plant Breeding & Genetics University College of Agriculture University of Sargodha National Agricultural University La Molina (UNALM) USDA ARS Corn Host Plant Resistance Research Unit Crop Research Institute Anhui Academy of Agricultural Sciences Department of Crop Science College of Agricultural and Marine Sciences Sultan Qaboos University Department of Botany Warsaw University of Life Sciences-SSGW Social Sciences Research Institute National Agriculture Research Council

Most yield progress obtained through the so called ＂Green Revolution＂, particularly in the irrigated areas of Asia, has reached a limit, and major resistance genes are quickly overcome by the appearance of new strains of disease causing *** plant stresses due to a changing environment are difficult to breed for as quickly as the changes *** is consequently a continual need for new research programs and breeding strategies aimed at improving yield potential, abiotic stress tolerance and resistance to new, major pests and *** advances in plant breeding encompass novel methods of expanding genetic variability and selecting for recombinants, including the development of synthetic hexaploid, hybrid and transgenic *** addition, the use of molecular approaches such as quantitative trait locus（QTL） and association mapping may increase the possibility of directly selecting positive chromosomal regions linked with natural variation for grain yield and stress *** present article reviews the potential contribution of these new approaches and tools to the improvement of wheat yield in farmer＇s fields, with a special emphasis on the Asian countries, which are major wheat producers, and contain the highest concentration of resource-poor wheat farmers.

关键词： genetic diversity heterosis hybrid wheat synthetic hexaploid wheat yield potential

Spatially resolved chiroptical study of thin films of benzo[1,2-b:4,5-b’]dithiophene-based oligothiophenes by synchrotron radiation electronic circular dichroism imaging(SR-ECDi)technique

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Aggregate 2022年第5期3卷 217-226页

作者： Gianluigi Albano marcin Gorecki Tamas Javorfi Rohanah Hussain Giuliano Siligardi Gennaro Pescitelli Lorenzo Di Bari Dipartimento di Chimica e Chimica Industriale Universitàdi PisaPisaItaly Institute of Organic Chemistry Polish Academy of SciencesWarsawPoland Diamond Light Source Ltd.ChiltonUK Dipartimento di Chimica Universita degli Studi di Bari‘Aldo Moro’via Edoardo Orabona 4Bari 70126Italy

The study of the chiroptical properties of thin-film samples of two chiral benzo[1,2-b:4,5-b’]dithiophene-based oligothiophenes with optoelectronic properties was carried out at Diamond B23 beamline using the synchrotron radiation electronic circular dichroism imaging(SR-ECDi)*** experimental results support the hypothesis that the non-reciprocal circularly polarized absorption observed in these materials is due to the combined linear dichroism and linear birefringence *** mapping at 50-μM spatial resolution revealed that several species coexist in the mesoscopic chiral domains likely due to different aggregated phases,which were identified in the films by SR-ECDi but could not be detected with benchtop ECD instruments.

关键词： benzo[1,2-b:4,5-b’]dithiophene circular dichroism imaging oligothiophenes synchrotron radiation thin films

Potential for carbon sequestration in reclaimed mine soil on reforested surface mining areas in Poland

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Natural Science 2010年第9期2卷 1015-1021页

作者： marcin Pietrzykowski Wojciech Krzaklewski 不详

Reclaimed mine soils (RMS) which develop on post-mining sites play significant role in Carbon sequestration in new ecosystems, especially in local range on areas disturbed by human activity. This study presents the potential for Carbon sequestration in RMS developing on 3 post sur- face mining areas in Poland (Central Europe) reforested with Scots pine (Pinus sylvestris L). Research was conducted on waste heaps and quarry which accompany open cast lignite, sul- fur, and sand mining. Control plots were arrang- ed in managed pine forests on natural sites in the surrounding area. The results shows high Carbon accumulation in RMS, estimated on 16.77 Mg?ha-1 in poor (oligotrofic) soils on Quaternary sands on sand quarry and up to 65.03 Mg?ha-1 on external waste heap after Sulfur sur- face mining exploitation on Quaternary sands mixed with Tertiary clays. These results were very similar to natural forest soils on control plots. Potential rate of Carbon sequestration in RMS was estimated on 0.73 (on the poorest sa- ndy soils on quarry) to 2.17 Mg?ha-1?yr-1 (on potentially abundant sandy-clayish soils on Sulfur waste heap), and 5.26 Mg?ha-1?yr-1 (on Tertiary sands substrate soils on lignite mining waste heap). In conslusion the average Carbon accu- mulation in RMS was estimated on 41 Mg?ha-1 and Carbon sequestration rate was 1.45 Mg? ha-1?yr-1. According to the result of this study and range of post-mining areas reclaimed to forestry in Poland (ca 15000 ha) total Carbon accumulation in RMS was estimated on 615 × 103 Mg and potential Carbon sequestration rate in new ecosystems on 21.75 × 103 Mg?ha-1?yr-1. However, the main factors affecting Carbon sequestration and protection in RMS under tree stand were substrate, percentage of clay and silt sized fraction, in order to formulate guidelines for sustainable management of post-mining ec- osystem, further study must be continue for be- tter understanding.

关键词： Post-Mining Ecosystem Reclaimed Mine Soils Reforestation Carbon Sequestration

Human Body Behavior as Response on Autonomous Maneuvers, Based on ATD and Human Model

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Journal of Mechanics Engineering and Automation 2015年第9期5卷 497-502页

作者： marcin Mirostaw Dominik Jastrzebski Faculty of Power and Aeronautical Engineering Warsaw University of Technology Warsaw 00-665 Poland

In the near future, active safety systems will take more control over the vehicle driving, even up to introducing fully autonomous vehicles. Nowadays, it is expected that the active safety systems will aid avoiding collisions much more efficiently than human drivers. These systems can protect not only the passengers, but also other road users. To mitigate collision, certain maneuvers （e.g., sudden braking, lane change, etc.） need to be done in a reasonably quick time. However, this may lead to low-g energy pulses. The latter fact, may cause unexpected and, in some cases, unwanted occupant body motion resulting even in OOP （out of position） postures. New patterns of occupant reactions in such cases are, to some extent, confirmed experimentally [1-3]. This paper evaluates the limits of standard ATDs （anthropometric test devices） and chosen human models in well established maneuver scenarios. Obtained results are compared with experimental data available in the literature. Drawbacks identify new challenges for the near future simulation based safety engineering. One scenario with combined conditions of emergency braking during lane change has been used as an example of OOP posture after maneuver.

关键词： Active safety systems passive safety systems autonomous maneuvers human body behavior.

Pioglitazone, a specific ligand of peroxisome proliferator-activated receptor-gamma, protects pancreas against acute cerulein-induced pancreatitis

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World Journal of Gastroenterology 2005年第40期11卷 6322-6329页

作者： Peter C Konturek Artur Dembinski Zygmunt Warzecha Grzegorz Burnat Piotr Ceranowicz Eckhart G Hahn marcin Dembinski Romana Tomaszewska Stanislaw J Konturek Department of Physiology

AIM： To determine the effect of pioglitazone, a specific peroxisome proliferator-activated receptor-y （PPART） ligand, on the development of acute pancreatitis （AP） and on the expression of heat shock protein 70 （HSP70） in the pancreas. METHODS： AP was induced in rats by subcutaneous infusion of ceruw was measured by laser Dopplein for 5 h. Pancreatic blood floler flowmetry. Plasma lipase activity, intedeukin-1β （IL-1β） and IL-10 were determined. Pancreatic weight and histology were evaluated and pancreatic DNA synthesis and blood flow as well as pancreatic mRNA for IL-1β and HSP70 were assessed in rats treated with pioglitazone alone or in combination with cerulein. RESULTS： Pioglitazone administered （10-100 mg/kg i.g.） 30 min before cerulein, attenuated dose-dependently the pancreatic tissue damage in cerulein-induced pancreatitis （tiP） as demonstrated by the improvement of pancreatic histology, reduction in plasma lipase activity, plasma concentration of pro-inflammatory IL-1β and its gene expression in the pancreas and attenuation of the pancreatitis-evoked fall in pancreatic blood flow. CIP increased pancreatic HSP70 mRNA and protein expression in the pancreas and this effect was enhanced by pioglitazone treatment. CONCLUSION： Pioglitazone attenuates CIP and the beneficial effect of this pioglitazone is multifactorial probably due to its anti-infiammatory activities, to the suppression of IL-1β and to the overexpression of HSP70. PPART ligands could represent a new therapeutic optionin the treatment of AP.

关键词： Cerulein-induced pancreatitis PPARy, ligand Heat shock protein 70